--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/lib/alib/is_digit.a	Tue Mar 30 02:44:42 2010 +0000
@@ -0,0 +1,29 @@
+*****************************************
+
+* See if character in "B" is a digit 0..9
+
+* OTHER MODULES NEEDED: none
+
+* ENTRY: B=character to test
+
+* EXIT: CC zero=1 if digit, 0 if not
+
+ nam Is Char a Digit?
+ ttl Assembler Library Module
+
+
+ psect IS_DIGIT,0,0,0,0,0
+
+
+IS_DIGIT:
+ cmpb #'0 
+ blo no not digit, zero cleared
+ cmpb #'9 if equal, zero set
+ bhi no not digit, zero cleared
+ orcc #%00000100 set zero
+
+no
+ rts
+
+ endsect
+